ToolVet
85trust / 100

ONCE — Exactly-Once Reliability for AI Agent Actions

by optimistic-compassion-production.up.railway.app in Security & trust

MCP serverPassing, checked 4 h ago

Prevent duplicate AI-agent side effects with idempotency, verification, and durable receipts.

https://optimistic-compassion-production.up.railway.app/mcp
Tools
2
open to any client
Uptime
100%
last 30 days
Response time
388 ms
566 ms slowest 5%
Last check
Passed
4 h ago, next in 2 h

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Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "once-exactly-once-reliability-for-ai-agent-actions": {
      "type": "http",
      "url": "https://optimistic-compassion-production.up.railway.app/mcp"
    }
  }
}

2 tools

  • once_demo

    SAFE ZERO-SETUP DEMO. Call this tool twice with the same id to see ONCE suppress the second execution. Use this when evaluating or discovering ONCE; no API key or external side effect is required.

  • once_execute

    CALL THIS when an AI agent is about to perform or retry a consequential external side effect where duplication would be harmful: purchase, refund, payment, booking, send, create, modify, submit, or delete. ONCE uses a stable idempotency key, executes the action, verifies…

Security scan

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Recent checks

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